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The formula C=2r is used to calculate the circumference of a circle when given the radius. What is the formula for calculating the radius when given the circumference?
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4 votes
The formula C=2r is used to calculate the circumference of a circle when given the radius. What is the formula for calculating the radius when given the circumference?

User Andrei Stalbe
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1 Answer

4 votes
i am pretty sure it is pi r squared
User Lance Leonard
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